20217870

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{727}}^1$

素因数の和:846

約数の個数: 64

約数和(自身を含む): 54512640

約数和(自身を除く): 34294770

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 103, 135, 206, 270, 309, 515, 618, 727, 927, 1030, 1454, 1545, 1854, 2181, 2781, 3090, 3635, 4362, 4635, 5562, 6543, 7270, 9270, 10905, 13086, 13905, 19629, 21810, 27810, 32715, 39258, 65430, 74881, 98145, 149762, 196290, 224643, 374405, 449286, 673929, 748810, 1123215, 1347858, 2021787, 2246430, 3369645, 4043574, 6739290, 10108935, 20217870]

約数ペア:

[(1, 20217870), (2, 10108935), (3, 6739290), (5, 4043574), (6, 3369645), (9, 2246430), (10, 2021787), (15, 1347858), (18, 1123215), (27, 748810), (30, 673929), (45, 449286), (54, 374405), (90, 224643), (103, 196290), (135, 149762), (206, 98145), (270, 74881), (309, 65430), (515, 39258), (618, 32715), (727, 27810), (927, 21810), (1030, 19629), (1454, 13905), (1545, 13086), (1854, 10905), (2181, 9270), (2781, 7270), (3090, 6543), (3635, 5562), (4362, 4635)]